CN112803566A - Battery hybrid control device, power supply management system and rail vehicle - Google Patents
Battery hybrid control device, power supply management system and rail vehicle Download PDFInfo
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- CN112803566A CN112803566A CN202110044995.1A CN202110044995A CN112803566A CN 112803566 A CN112803566 A CN 112803566A CN 202110044995 A CN202110044995 A CN 202110044995A CN 112803566 A CN112803566 A CN 112803566A
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- Prior art keywords
- air fuel
- battery
- metal
- power supply
- lithium battery
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- 239000000446 fuel Substances 0.000 claims abstract description 92
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 63
- 229910052751 metal Inorganic materials 0.000 claims description 57
- 239000002184 metal Substances 0.000 claims description 57
- 238000005457 optimization Methods 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/10—Applications of fuel cells in buildings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Automation & Control Theory (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a battery hybrid control device, a power supply management system and a rail vehicle. Preferably, the metal-air fuel cell further comprises a DC-DC converter arranged between the output terminal of the metal-air fuel cell and the lithium battery, the DC-DC converter comprising a plurality arranged in parallel. Through the optimization of the battery hybrid control device, the load function requirement and the improvement of the system operation reliability can be effectively considered.
Description
Technical Field
The invention relates to the technical field of rail transit power supply control, in particular to a battery hybrid control device, a power supply management system and a rail vehicle.
Background
Metal air fuel cells are a new type of high energy chemical power source. Taking an aluminum fuel cell as an example, the aluminum fuel cell takes aluminum alloy as a negative electrode, an air electrode as a positive electrode and neutral or alkaline aqueous solution as electrolyte, and electric energy is output to the outside by consuming oxygen in the aluminum alloy negative electrode and air in the running process of the cell. The aluminum fuel battery has the advantages of high energy density, light weight, no pollution, high reliability, long service life and the like.
In the prior art, the aluminum air fuel for the railway vehicle cannot meet the requirement of timely load response and cannot reliably meet the requirement of load characteristic of instantaneous high-power output when the load is started.
In view of the above, it is desirable to provide an innovative solution for the hybrid control technology of the metal air fuel cell and the lithium battery, so as to improve the reliability of the system on the basis of meeting the demand of timely load response.
Disclosure of Invention
In order to solve the technical problems, the invention provides a battery hybrid control device, a power supply management system and a rail vehicle, wherein the battery hybrid control device is optimized to effectively meet the requirements of a load function and improve the running reliability of the system.
The invention provides a battery mixing control device which comprises a control unit, a metal air fuel battery and a lithium battery, wherein the metal air fuel battery and the lithium battery can supply power to an electric load, the control unit outputs a starting signal to a control end of the metal air fuel battery or the lithium battery according to state information of the metal air fuel battery and the lithium battery, and the metal air fuel battery comprises a plurality of metal air fuel batteries which are arranged in parallel.
Preferably, the metal-air fuel cell further comprises a DC-DC converter arranged between the output terminal of the metal-air fuel cell and the lithium battery, the DC-DC converter comprising a plurality arranged in parallel.
Preferably, in the metal air fuel cell and the lithium battery, the lithium battery is a priority power supply; the control unit takes the charge amount of the lithium battery smaller than a first preset threshold value as a first judgment condition, and outputs a starting instruction to the control end of the metal air fuel battery, and the metal air fuel battery supplies power for an electric load and charges the lithium battery.
Preferably, the control unit outputs a power limitation instruction to a control end of the DC-DC converter under a second judgment condition that the charge amount of the lithium battery is higher than a second preset threshold.
Preferably, the output power of the metal-air fuel cell is consistent with the power supplied by an electric load according to the power limit instruction.
Preferably, the control unit outputs a power regulation command to a control end of the DC-DC converter with at least one of the metal-air fuel cell failure and/or over-temperature as a third judgment condition.
Preferably, the control unit outputs a shut-off command to the corresponding fault object control terminal with at least one of the metal-air fuel cell failure and the DC-DC converter failure as a fourth determination condition.
Preferably, the control unit further outputs a power limit command to a control terminal of the DC-DC converter, with at least one of the metal-air fuel cell failure and the DC-DC converter failure as a fourth determination condition.
The invention also provides a power supply management system, which comprises a mains supply power supply line and the battery hybrid control device, wherein the mains supply power supply line is a priority power supply in the metal air fuel battery, the lithium battery and the mains supply power supply line.
The invention also provides a rail vehicle comprising the power supply management system.
Aiming at the existing railway vehicle, the invention provides a solution for improving the operation reliability aiming at the power supply management of the railway vehicle, and particularly, a control unit outputs a starting signal to a control end of a metal air fuel cell or a lithium battery according to the state information of the metal air fuel cell and the lithium battery, so that the metal air fuel cell and the lithium battery are mutually redundant in coordination work. When the lithium battery fails, the metal air fuel cell directly supplies power to the electric load; when the metal air fuel cell fails, the lithium battery can also supply power for the power load so as to meet the requirements of different load functions; moreover, the system electric quantity can be improved by more than 50 percent on the basis of approximately the same battery volume and weight. When one of the metal air fuel cells fails, the metal air fuel cells are mutually redundant, so that the normal operation of the system can be ensured, and the reliability of the system is effectively improved.
In a preferred embodiment of the present invention, a plurality of DC-DC converters are provided in parallel between the output of the metal-air fuel cell and the lithium battery. Therefore, when one of the DC-DC converters fails, the DC-DC converters are mutually redundant, normal operation of the system can be ensured, and the reliability of the system is further improved.
In another preferred scheme of the invention, a lithium battery is taken as a priority power supply, and a control unit takes the charge quantity of the lithium battery smaller than a first preset threshold value as a first judgment condition and outputs a starting instruction to a control end of the metal air fuel cell; namely, under the condition of no mains supply, the lithium battery is preferentially adopted to supply power for the system, the metal air fuel battery is taken as an auxiliary power supply, and the power supply operation and maintenance cost is relatively low; the metal air fuel cell supplies power to an electric load after being started, and simultaneously charges a lithium battery for starting the lithium battery again.
In another preferred embodiment of the present invention, the control unit outputs a power limiting command to the control terminal of the DC-DC converter to limit the output power of the metal air fuel cell, with the charge amount of the lithium battery being higher than a second preset threshold as a second determination condition; that is, after the electric capacity of the lithium battery is sufficient to meet the actual starting requirement, the output power of the metal air fuel cell can meet the use requirement of the electric load. Preferably, according to the power limit instruction, the output power of the metal-air fuel cell is consistent with the power supply power of the electric load, the metal-air fuel cell is used for supplying power to the electric load independently, and the lithium battery is in a floating charge state and is in an optimal configuration.
In still another preferred aspect of the present invention, the control unit outputs a power adjustment command to the control terminal of the DC-DC converter with the at least one metal air fuel cell failure and/or over-temperature as the third determination condition. Therefore, based on the current and power online adjusting function of the DC-DC converter, when one of the metal air fuel cells can not work normally, the current load using requirement can be met through dynamic adjustment, and the method has good adaptability.
Drawings
Fig. 1 is a schematic diagram of a battery mixing control apparatus according to an embodiment.
In the figure:
the device comprises a metal air fuel cell 1, a lithium battery 2, a DC-DC converter 3, a control unit 4, an electric load 5 and a commercial power supply line 6.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, a schematic diagram of a battery mixing control device according to the present embodiment is shown.
The battery hybrid control device comprises a metal air fuel battery 1 and a lithium battery 2, and can respectively supply power to electric loads 5 under the coordination control of a control unit 4. Here, the metal air fuel cell 1 having magnesium, aluminum, zinc, mercury, iron, or the like as a negative electrode can be selected as needed, and for example, but not limited to, an aluminum air fuel cell is preferably used, and the metal air fuel cell has characteristics of low use cost and stable performance.
In this embodiment, the control unit 4 collects status information representing parameters such as, but not limited to, output power (voltage, current), operating temperature, and fault of the battery according to status information of the metal-air fuel cell 1 and the lithium battery 2, and outputs a start signal to the control end of the metal-air fuel cell 1 or the lithium battery 2 according to the status information, where the two can coordinate to work and are redundant to each other. When the lithium battery 2 has a fault, the metal air fuel battery 1 directly supplies power to the electric load 5; when the metal air fuel cell 1 fails, the lithium battery 2 can also supply power for the electric load so as to meet the requirements of different load functions. In actual operation, the control unit 4 is used as a control core, collects the state information of the lithium battery 2, the DC-DC converter 3 and the metal air fuel cell 1 through CAN communication, and integrally controls the work of the coordination system through synthesizing the relevant state information. Compared with the prior art, the scheme fully exerts the advantages of large capacity of the metal air fuel cell 1, convenient energy supply and large power output of the lithium battery 2, and the electric quantity of the system can be improved by more than 50 percent on the basis of approximately the same volume and weight of the battery.
Wherein the metal-air fuel cell 1 includes a plurality of (1-1, 1-2 … 1-n) arranged in parallel. In actual operation, when one of the metal air fuel cells fails, the normal operation of the system can still be ensured, and the metal air fuel cells 1 are mutually redundant, so that the reliability of the system can be effectively improved. As shown in the figure, the output port of each metal-air fuel cell 1 is connected in series with a rectifying diode (VD)1、VD2…VDn) And stable pulse direct current is output by utilizing the characteristic of unidirectional conduction.
In the scheme, the DC-DC converter 3 between the output end of the metal air fuel cell 1 and the lithium battery 2 can convert the DC voltage output by the metal air fuel cell 1 into the DC voltage meeting the use requirement, so that the load application is more stable and reliable, the response is rapid, and the effect of saving electric energy is achieved. Here, the DC-DC converters include a plurality of (3-1, 3-2 … 3-n) arranged in parallel, and when one of them fails in actual use, the system can be ensured to operate normally, and the DC-DC converters 3 are redundant to each other, thereby further improving the reliability of the system.
In the scheme, CAN communication is preferably adopted for data exchange among the metal air fuel cell 1, the lithium battery 2, the DC-DC converter 3 and the control unit 4, and the data exchange specifically comprises information acquisition and instruction sending.
In order to reasonably control the power supply operation and maintenance cost, the lithium battery 3 is used as a priority power supply in the metal air fuel battery 1 and the lithium battery 2. Under the condition of no mains supply, the lithium battery 2 is preferentially adopted to supply power to the system, and the power load 5 is started to work and is supplied with power by the lithium battery 2; accordingly, the metal air fuel cell 1 is taken as an auxiliary power supply, and the power supply operation and maintenance cost is relatively low on the whole. Specifically, the control unit 4 outputs a start instruction to the control end of the metal-air fuel cell 1 under the first judgment condition that the charged amount of the lithium battery 2 is smaller than the first preset threshold, switches to the state that the metal-air fuel cell 1 supplies power to the electric load, and simultaneously charges the lithium battery 2 after the metal-air fuel cell is started, so as to start the lithium battery 2 again. Due to the configuration, the output capability of medium and high power electric energy can be ensured while the strong cruising ability is ensured. Here, the "first preset threshold" may be set according to different characteristics of the lithium battery 2 as long as the normal operation of the system can be ensured.
Further, the control unit 4 may also output a power limitation instruction to the control end of the DC-DC converter 3, where the charge amount of the lithium battery 2 is higher than a second preset threshold as a second judgment condition. Here, the "second preset threshold" may be set according to different characteristics of the lithium battery 2, that is, after the charge amount of the lithium battery 2 is sufficient to meet the actual activation requirement, the output power of the metal-air fuel cell 1 may meet the use requirement of the electrical load 5. Preferably, according to the power limit command, the output power of the metal-air fuel cell 1 is equal to the power supplied by the electric load 5, the metal-air fuel cell 1 alone supplies power to the electric load 5, and the lithium battery 2 is in a floating charge state at this time, which is an optimal configuration.
In order to further improve the adaptability of the system, when a failure of a certain metal air fuel cell 1 or an over-temperature of a certain metal air fuel cell 1 is detected, preferably, the control unit 4 further outputs a power regulation command to the control end of the DC-DC converter 3 with the failure and/or the over-temperature of at least one metal air fuel cell 1 as a third judgment condition, that is, the output power of the DC-DC converter 3 can be regulated online. Based on the current and power online regulation function of the DC-DC converter 3, when one of the metal air fuel cells 1 cannot work normally, the current load use requirement can be met through dynamic regulation.
In addition, when any one of the metal air fuel cell 1 and the DC-DC converter 3 has a fault and the fault information is fed back to the control unit 4, the control unit 4 may also output a shut-off command to the corresponding fault object control terminal when at least one of the metal air fuel cell 1 and the DC-DC converter 3 has a fault or at least one of the DC-DC converter 3 has a fault as a fourth determination condition; that is, the metal-air fuel cell 1 or the DC-DC converter 3 that has failed is cut off.
Further, the control unit 4 outputs a power limiting command to the control terminal of the DC-DC converter 3 under the fourth judgment condition that at least one metal-air fuel cell 1 fails or at least one DC-DC converter 3 fails, and performs power limiting output while cutting off the failed metal-air fuel cell 1 or DC-DC converter 3.
In addition to the battery hybrid control device, the present embodiment also provides a power supply management system for a rail vehicle, which includes a commercial power supply line 6 and the battery hybrid control device as described above, where, among the metal air fuel cell 1, the lithium battery 2 and the commercial power supply line 6, the commercial power supply line 6 is used as a priority power supply, and commercial power is used to charge the lithium battery 2 and supply power to the power load 5 through the DC-DC converter 3; as mentioned above, under the condition of no commercial power supply, the lithium battery 2 is preferentially adopted to supply power for the system. It should be understood that other functions of the power supply management system for rail vehicles constitute non-core points of the invention of the present application, and those skilled in the art can implement the functions based on the prior art, and therefore, the details are not described herein.
In addition, a rectifying diode VD can be connected in series on the mains supply line 611The input port of the power load 5 can be connected in series with a rectifying diode VD12And the power supply stability is integrally improved.
In addition to the aforementioned battery hybrid control device and power supply management system, the present embodiment also provides a railway vehicle including the power supply management system. It should also be understood that other functions of the rail vehicle constitute non-core points of the invention of the present application, and those skilled in the art can implement the functions based on the prior art, and therefore, the details are not described herein.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. The battery mixing control device is characterized by comprising a control unit, a metal air fuel battery and a lithium battery, wherein the metal air fuel battery and the lithium battery can supply power to an electric load, the control unit outputs a starting signal to a control end of the metal air fuel battery or the lithium battery according to state information of the metal air fuel battery and the lithium battery, and the metal air fuel battery comprises a plurality of metal air fuel batteries which are arranged in parallel.
2. The battery mixing control apparatus according to claim 1, further comprising a DC-DC converter provided between the output terminal of the metal-air fuel cell and the lithium battery, the DC-DC converter including a plurality arranged in parallel.
3. The battery mixing control device according to claim 2, wherein of the metal air fuel cell and the lithium battery, the lithium battery is a priority power supply; the control unit takes the charge amount of the lithium battery smaller than a first preset threshold value as a first judgment condition, and outputs a starting instruction to the control end of the metal air fuel battery, and the metal air fuel battery supplies power for an electric load and charges the lithium battery.
4. The battery mixing control device according to claim 3, wherein the control unit outputs a power limitation command to the control terminal of the DC-DC converter under a second judgment condition that the charge amount of the lithium battery is higher than a second preset threshold.
5. The battery mixing control device according to claim 4, wherein the output power of the metal-air fuel cell corresponds to an electric load power supply power in accordance with the power limit command.
6. The battery mixing control device according to any one of claims 2 to 5, wherein the control unit outputs a power adjustment command to a control terminal of the DC-DC converter with at least one of the metal-air fuel cell failure and/or over-temperature as a third determination condition.
7. The battery mixing control device according to claim 6, wherein the control unit outputs a shut-off command to the corresponding failure target control terminal, on condition that at least one of the metal-air fuel cell failure and the DC-DC converter failure is a fourth determination condition.
8. The battery mixing control device according to claim 7, wherein the control unit further outputs a power limit command to a control terminal of the DC-DC converter, on condition that at least one of the metal-air fuel cell failure and the DC-DC converter failure is a fourth judgment condition.
9. A power supply management system comprising a mains power supply line, characterized by further comprising the battery hybrid control device as claimed in any one of claims 1 to 8, wherein among the metal-air fuel cell, the lithium battery and the mains power supply line, the mains power supply line is a priority power supply.
10. Rail vehicle comprising a power supply management system, characterized in that the power supply management system is a power supply management system according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110044995.1A CN112803566A (en) | 2021-01-13 | 2021-01-13 | Battery hybrid control device, power supply management system and rail vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110044995.1A CN112803566A (en) | 2021-01-13 | 2021-01-13 | Battery hybrid control device, power supply management system and rail vehicle |
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| CN112803566A true CN112803566A (en) | 2021-05-14 |
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| CN202110044995.1A Pending CN112803566A (en) | 2021-01-13 | 2021-01-13 | Battery hybrid control device, power supply management system and rail vehicle |
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2021
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|---|---|---|---|---|
| CN101505092A (en) * | 2009-03-09 | 2009-08-12 | 武汉理工大学 | Standby electrical power system of fuel cell for communication |
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